Electronic frying oil tester

What is an Electronic Oil Tester?

The frying oil tester is a measuring instrument that allows you to determine the quality of different types of frying oils.

Lightweight and easy to use, the frying oil tester can simultaneously display frying oil temperature and %RPM value.

The % TPM value (Total Polar Matter) allows the user to judge the aging and quality of the cooking oil, which deteriorates over time under the effect of heating.

The measuring tip of the probe is placed directly into the hot frying oil and in less than 30 seconds, the user can establish the temperature and quality of the oil.

The % TPM value is a measure of the thermal oxidative stress level of a frying oil.

The frying oil tester incorporates a LED color change function GREEN, ORANGE or RED easy to read, which lets you know if the oil needs or will soon need to be changed.

By changing the oil only when necessary, you can save time and money, as well as reducing waste.

Suitable for measuring olive oil, palm oil, rapeseed oil, peanut oil, soybean oil, sesame oil, vegetable oils and animal fats.

How does the electronic oil tester work?

The Digital Frying Oil Tester and Thermometer test total fleece (TPM) frying oils.

The TPM measures the amount of polar materials in the oil.

A molecule is polar because the negatively charged electrons which spin are not evenly distributed (odd number), whereas a nonpolar molecule has evenly distributed electrons (even number).

For exemple, water is a very polar material and oil is non-polar, which means the water would separate from the oil as shown in the image below (imagine magnets):

TPM fleece materials

Triglycerides are also detected using TPM.

Those are compounds combined with 1 molecule of glycerol and 3 fatty acids, so these are larger molecules than the singular fatty acids that the test strips detect.

The digital tester measures the number of these “largest” polar molecules which appear in the oil and provide a percentage of TPM (%TPM) on the LCD screen.

24% TPM is considered the percentage at which the frying oil is no longer suitable for human consumption.

This is done via a dielectric constant measurement between 2 capacitance plates.

Technical characteristics

Range : 0 to 40% TPM and 30 to 200°C

Resolution : 0,5% TPM et 0,1 °C

Precision : ± 3% TPM et ± 1,5 °C

Battery : 2 x 1,5 volts AAA

Battery life: 25 hours of continuous use

Sensor type: capacitance

Display : Custom LCD

Dimensions : 31 x 48 x 365 mm

Weight : 250 grammes